After Boss met up with his comrades, CC-01/425 tasked Delta Squad with the assassination of GeonosianArchdukePoggle the Lesser's chief lieutenant, Sun Fac. As Delta Squad searched for Fac, CC-01/425 kept them up to date on the surrounding environment, in the form of traps or enemies in the area. Facing off against battle droids along the way, Delta Squad caught up with Fac, and Sev shot his fleeing Nantex-class starfighter. Fac was killed in the ensuing crash. Upon its completion of the task, the squad was informed by CC-01/425 of the next part of its mission: disabling an underground droid factory on the world. After Delta Squad infiltrated the foundry, CC-01/425 searched the building's schematics for a weak point, which he eventually found to be two power conduits that, if destroyed, would disable the facility. Delta Squad succeeded in eliminating the conduits and disabling the factory, and CC-01/425 then sent the commandos to raid a Lucrehulk-class Core Ship and gain launch codes that would prevent an entire fleet of Separatist Core Ships in orbit of Geonosis from escaping the battle. Through the continued help and guidance of CC-01/425, Delta Squad retrieved the launch codes and destroyed the Core Ship.[2] Shortly after, the Republic won the battle raging on Geonosis.[3]

CC-01/425 scanned the derelict capital ship and found a Trandoshan dropship in one of the Prosecutor's hangars. Delta Squad informed him that they had indeed encountered numerous Trandoshanmercenaries already, so CC-01/425 ordered the clones to repel the enemy. Delta Squad discovered, however, that the Trandoshans were being backed by elements of the Confederacy, which arrived to reinforce their allies with an armed Lucrehulk-class battleship. While Delta Squad fought the large amount of battle droids deployed by the battleship, CC-01/425 performed scans of the ship and found that it contained great amounts of information that would be vital to the Republic. CC-01/425 then called for Republic assistance, and he eventually got through to Republic NavyCaptainTalbot, in command of the Acclamator-class assault ship Arrestor, who came to their aid. In conjunction with Delta Squad's efforts to reactivate the Prosecutor's turbolaser battery, Arrestor destroyed the Lucrehulk-class Droid Control Ship that was controlling the droids and ensured Delta Squad's mission was a success.[2]

In the final year of the war,[5] CC-01/425 informed Delta Squad that they would be inserted onto the planet Kashyyyk to locate the Wookiee ChieftainTarfful, who had been captured by Separatist-backed Trandoshan slavers. Once on the surface of Kashyyyk, CC-01/425 guided the squad through the forests to a Trandoshan slave camp, where Delta Squad freed several other imprisonedWookiees. When the Separatist GeneralGrievous's personal starfighter, Soulless One, was sighted nearby, CC-01/425 ordered Delta Squad to visually confirm the cyborg General's presence. Grievous was on Kashyyyk to take Tarfful into custody, but when Delta Squad struck, he fled the planet aboard the Soulless One, leaving his IG-100 MagnaGuards to battle Delta Squad. The commandos defeated the MagnaGuards, and as they moved onward, CC-01/425 oversaw their strike on another Trandoshan compound in the Wroshyr tree forests of Kashyyyk.[2] However, his authority and operational tasking duties were later superseded by Jedi GeneralEtain Tur-Mukan's arrival on Kashyyyk.[6] Meanwhile, Delta Squad was forced to leave behind its main sniper, Sev—who had come under attack and been cut off from the rest of the squad[2]—as Tur-Mukan was drawn away by the Wookiee Enacca to be taken to the galacticcapital planet Coruscant.[6] The job of settling the angered and upset Delta Squad members, who were distraught about leaving Sev behind, fell to CC-01/425. He tried to help Delta Squad by relaying a message from JediGrand MasterYoda through the squad's hologram projector, before reassigning Delta Squad with a new objective as the Battle of Kashyyyk truly began.[2] Although the Battle of Kashyyyk ended with a Republic victory,[5]Order 66, a contingency order for all of the Republic's clone troopers to immediately execute their Jedi Generals,[6] was issued during the battle and resulted in many deaths.[5]

"Three-Eight, get your squad under control! One commando is not worth jeopardizing an entire operation!""One commando?! He's talking about my pod brother!"

―CC-01/425 and Scorch, after Delta Squad is forced to leave Sev behind[src]

CC-01/425 speaks with Delta Squad.

CC-01/435 was a clone advisor[2] who stood 1.83 meters tall.[1] He was a levelheaded soldier and expert tactician, proving a valuable asset to Delta Squad on every mission with which he was tasked to assist it. Remaining calm and collected, CC-01/425 was often able to find efficient, if often improvised, solutions to problems facing Delta Squad in the field. He frequently helped Delta Squad find new ways around obstacles and enemies that would come up unexpectedly. CC-01/425 possessed a dry and cynical sense of humor. Though he never hassled Delta Squad members Sev or Scorch for their incessant chatter and back-and-forth quips, he demanded that the squad be professional when such conduct was needed. He was also strongly pragmatic, believing that the loss of a single clone commando was acceptable in the scope of successfully completing a major operation. After Delta Squad was forced to leave Sev behind, CC-01/425 tried to help the angered commandos by telling them to get a hold on their emotions.[2]

CC-01/425 wore Phase I clone trooper armor throughout the war, rather than changing to Phase II clone trooper armor.[2] Even during the Battle of Kashyyyk, when most clone troopers had made the switch to Phase II armor,[5] he still retained his Phase I armor. Like most clone troopers, he had an in-helmet comlink that he used to communicate with Delta Squad. He also had equipment that was capable of calling in Republic support, which is what he did during Delta Squad's mission in the Chaykin Cluster.[2]

CC-01/425 first appeared in the LucasArtsvideo gameStar Wars: Republic Commando, which was released on March 1, 2005. Despite appearing in a rather prominent role in the game, he was left out of the Republic Commando series of novels by author Karen Traviss. The actions of Delta Squad are only one aspect of the series, but when the novel Order 66 comes to Delta Squad's mission on Kashyyyk, CC-01/425 is still absent from the narrative. His lines during Sev's abandoning are attributed to a different clone character altogether, General Quinlan Vos'sForward Air Controller. This article documents CC-01/425's involvement throughout the Kashyyyk mission as portrayed in the game but favors Order 66's attribution of those few lines, as it is presented in the more recent source.